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Development of blueprints for applique armour for T-37 and T-38 tanks is underway at repair base #2, as instructed by the GABTU BTU in letter #148864s sent on September 19th, 1941.

As the hulls of the tanks are not the same, blueprints for applique armour can only be produced for one type of tank within the deadline you have given us.

We must also inform you that the maximum acceptable increase in weight for the T-38 tank is 400-500 kg. As for the T-37 tank, this kind of increase in weight can cause breaking of the differential, which can be observed even at the tank's regular weight.